TY - GEN
T1 - Improve the Temperature Stability of PVDF/PMMA Energy Storage Performance by Crosslinking
AU - Liu, Zhengwei
AU - Liu, Yongbin
AU - Gao, Jinghui
AU - Zhong, Lisheng
N1 - Publisher Copyright:
© 2023, Beijing Paike Culture Commu. Co., Ltd.
PY - 2023
Y1 - 2023
N2 - With the development of science and technology, energy storage capacitors are gradually developing towards miniaturization and high temperature. Recently, polyvinylidene fluoride (PVDF) has attracted wide attention due to its high dielectric contant and high energy storage density. However, the problems of high dielectric loss and low temperature stability restrict the application of polyvinylidene fluoride. In this paper, it is proposed to optimize the dielectric loss and breakdown strength of polyvinylidene fluoride-based energy storage materials by blending polymethyl methacrylate (PMMA) with high glass transition temperature and high breakdown strength performance. On this basis, the crosslinking agent 1,6-hexanediamine was used to realize the crosslinking of PVDF and PMMA to improve the temperature stability of the material. Through this scheme, the finally obtained crosslinked PVDF/PMMA (40/60) film has an energy storage density of 10.4–11.9 J/cm3 at 30–90 ℃, and efficiency of 79–88%, which are better than most dielectric polymers. Our work provides a solution for optimizing the temperature stability of the energy storage properties of polymer ferroelectric materials to achieve higher energy storage densities at higher temperatures.
AB - With the development of science and technology, energy storage capacitors are gradually developing towards miniaturization and high temperature. Recently, polyvinylidene fluoride (PVDF) has attracted wide attention due to its high dielectric contant and high energy storage density. However, the problems of high dielectric loss and low temperature stability restrict the application of polyvinylidene fluoride. In this paper, it is proposed to optimize the dielectric loss and breakdown strength of polyvinylidene fluoride-based energy storage materials by blending polymethyl methacrylate (PMMA) with high glass transition temperature and high breakdown strength performance. On this basis, the crosslinking agent 1,6-hexanediamine was used to realize the crosslinking of PVDF and PMMA to improve the temperature stability of the material. Through this scheme, the finally obtained crosslinked PVDF/PMMA (40/60) film has an energy storage density of 10.4–11.9 J/cm3 at 30–90 ℃, and efficiency of 79–88%, which are better than most dielectric polymers. Our work provides a solution for optimizing the temperature stability of the energy storage properties of polymer ferroelectric materials to achieve higher energy storage densities at higher temperatures.
KW - Crosslink
KW - Energy storage
KW - Polyvinylidene fluoride
KW - Temperature stability
UR - https://www.scopus.com/pages/publications/85161224258
U2 - 10.1007/978-981-99-1027-4_104
DO - 10.1007/978-981-99-1027-4_104
M3 - 会议稿件
AN - SCOPUS:85161224258
SN - 9789819910267
T3 - Lecture Notes in Electrical Engineering
SP - 993
EP - 1001
BT - The Proceedings of the 5th International Conference on Energy Storage and Intelligent Vehicles, ICEIV 2022
A2 - Sun, Fengchun
A2 - Yang, Qingxin
A2 - Dahlquist, Erik
A2 - Xiong, Rui
PB - Springer Science and Business Media Deutschland GmbH
T2 - 5th International Conference on Energy Storage and Intelligent Vehicles, ICEIV 2022
Y2 - 3 December 2022 through 4 December 2022
ER -